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Thread: First test results after slam.

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    First test results after slam.

    I have been letting my FC drop back to normal and finally did a full set of test results today. What are everyones opinions? My TA is a little up but my pH only rose 0.3 in three weeks. Should I just keep an eye on my pH for now or go ahead and try and lower my TA? I will post my before and after SLAM results..

    Before SLAM (4/18/16)
    FC-1.0
    CC-1.5
    pH-7.2
    TA-80
    CH-75
    CYA-50

    After SLAM (5/08/16)
    FC-7.0
    CC-0.0
    pH-7.5
    TA-100
    CH-75
    CYA-50

    All that has been added to the pool since the slam started is 10% Liquid Chlorine. Any thoughts or suggestions is greatly appreciated.
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Texas Splash's Avatar
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    Re: First test results after slam.

    Looks great! "goodjob: Time to swim.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    Re: First test results after slam.

    Trust me.. I have wanted to! Had a few colder days here and the water went from 76 to 64. Thats a bit too cold for me. haha. It was back up to 68 today so maybe in another week it will be around 78 again.
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    cowboycasey's Avatar
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    Re: First test results after slam.

    Those are some good looking numbers great job..

    Your TA will go down as you lower PH, so no worries...
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    Re: First test results after slam.

    Should I lower my pH now? I was thinking that it should be around 7.6?
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Mr Bruce's Avatar
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    Re: First test results after slam.

    What is your current pH?
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Re: First test results after slam.

    pH is 7.5
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Re: First test results after slam.

    I'd just watch it and see what it does over time. If it gets below 7.2-7.3 I would raise it, if it drifted up close to 7.8 I would bump it down a bit. With a vinyl pool it may be happy with that TA and stay still.
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Mod Squad pooldv's Avatar
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    Re: First test results after slam.

    PH needs to always be between 7.2 and 7.8 and ideally 7.5 to 7.8. TA at 100 might cause your PH to drift up. When it gets above 7.8 add acid to lower it to 7.5. This will slowly lower TA as well. It is fine to let your TA drop as low as 60 if that is where it ends up through acid additions to lower PH.
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    Re: First test results after slam.

    Thanks for the responses! I wasn't sure how important keeping the TA between 70 and 90 was. If/when pH rises to 7.8 I will start fine tuning. Now if it would heat up.... I am ready to try this pool out! haha.
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Re: First test results after slam.

    If my FC range is 4 to 8, should I be shooting for 8 since I am only adding chlorine once a day?
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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    Re: First test results after slam.

    Yes.
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Re: First test results after slam.

    That was quick... Thanks! Just added 3 quarts to get me back to 8. Do you use the FC on the K-1000 kit? Not sure that it would do my any good since it only goes up to 5? I guess I would know to add a certain amount once it hits 5 but wouldnt know until it was 5 or less.
    18x36 inground / 28k gal / Phanton vinyl liner (replaced in 2009) / Hayward Pro Series sand filter / Hayward 1hp pool pump / Hayward 3/4hp booster pump

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